Spectacle sweat bar



Feb 79 T195@ w. WENTWORTH SPECTACLE SWEAT BAR Filed OCT.. 7, 1947Patented Feb. 7, 1950 SPECTACLE SWEAT BAR Wilbur Wentworth, Cranston, R.I., assigner to Welsh Manufacturing Company, a. corporation of RhodeIsland Application October 7, 1947, Serial No. 778,354

1 Claim.

This invention relates to an ophthalmic mounting, more particularly to agoggle or sun glasses, and has particular reference to the so-calledsweat bar or cushion which is designed to engage the forehead of theuser.

In the use of sun glasses of this character, it has been usual toprovide a bar extending between the rims of the lenses at the upper edgethereof and a second'bar upon which a cushion is mounted to engage theforehead of the user. This cushion has consisted oi Celluloid or somelike material, and diiiiculty has been experienced in the mounting ofthis material on the bar which extends between the lenses for itssupport. Various means have been provided for such mount- One of theobjects of this invention is to reduce the number of metal bars whichare provided in a pair of sun glasses of this character.

Another object of this invention is to facilitate the mounting of acushion to engage the forehead on such sun glasses.

Another object of this invention is to utilize the metal bar which doesconnect the rims as a means for supporting the cushion in spacedrelation along a majority of the length of it.

With these and other objects in view, the invention consists of certainnovel features which will be more particularly pointed out in theappended specication.

In the accompanying drawing:

Figure 1 is a perspective view of the sun glasses equipped with thisinvention;

Figure 2 is a top plan view of the mid portion of the frame and with theouter ends of the frame broken away;

Figure 3 is a section on line 3-3 of Figure 2;

Figure 4 is a section similar to Figure 3 and showing a modified shapeof cushion;

Figure 5 is a section on substantially line 5-5 of Figure 2.

In proceeding with this invention, I secure, in addition to the bridgebetween the rims, a metal bar at the upper edge of the rims and providethis bar longer than is necessary to extend between the rims so that theends of the`bar may be turned rearwardly, and then I mount upon the endsso turned rearwardly, a cushion of Celluloid or some such material whichacts as a second bar to engage the forehead. This Celluloid bar may besnapped into place by the resilience inherent in the bent-back ends ofthe metal bar and in the Celluloid cushion.

With reference to the drawings, III-TIII designates the rims of themounting, which are provided with lenses I; a bridge I2 extends betweenthe rims to hold them in fixed relation. Nose pads I3 are also providedfor mounting the rims on the face of the wearer. Temples |4-I4 arehinged to the rims as at |5|5.

A raised connecting bar I6 extends between the rims lil- I0 and issecured to these rims at their' upper edges as at |I-|'I. The center ofthis bar I6 is bowed forwardly beyond the plane of the rims, as shown inFigure 2, while the end portions |8|8 of this bar I6 extend beyond thepoints of connection to the rims and are bent rearwardly as at |9| 9,and these rearwardly bent portions serve to support a cushion bar 20.

This cushion bar 20 is either of cylindrical construction, as shown at20 in Figure 3, or of oval construction, as shown at 20 in Figure 4.This bar may be either solid Celluloid throughout a major portion of itslength with recesses 2| or 2| in either end, or the bar may have anopening completely through it, axially thereof. These 1 recesses 2|serve to receive the end portions I9 of the bar I6, so as to mount thiscushion bar in a spaced relation to the bar |6. This cushion bar, beingrearwardlyv of the plane of the lenses and rearwardly of the metal barIB, engages the forehead and serves as a so-called sweat bar when theglasses are in position on the wearer.

In order to position the cushion bar 20 or 20' in place, the ends andcushion bar will be relatively iiexed so that when flexed, the ends willbe a sufcient distance apart to be received in the recesses 2| in theends of the bar. This method of assembly permits a very simple and quickmounting of the Celluloid bar in place and yet presents the featureswhich are desirable in the finished sun glasses for this purpose.

I claim:

In an ophthalmic mounting a pair of lens rims, a single bar xed to andextending between said rims at their upper edges, the ends of said barbeing bent rearwardly and then back upon themselves in aligned spacedrelation so that their end portions are parallel to and spaced from theplane of the lenses, and a sweat bar supported on said end portions bysaid end portions extending into the ends of said sweat bar.

WILBUR WENTWORTH.

(References on following page) REFERENCES CITED The following referencesare of record in the le of this patent:

UNITED STATES PATENTS 5 Number Name Date 1,238,396 Elwood Aug. 28, 19171,241,715 Day Oct. V2, 1917 1,265,546 Styll May 7, 1918 10 Number 4 NameDate Day Sept. 10, 1918 Walker June 17, 1919 Tassel May 1, 1923 ArntzOct. 21, 1924 Fensky Dec. 21, 1926 Baker May 23, 1933 .Carson Mar. 30,1937 Swanson Jan. 29, 1946

